Import D203s Pir Motion Sensor — Buy in wholesale FOB from Supplier in China

The D203S PIR motion sensor is a TO-5 encapsulated infrared detection module designed for low-power motion sensing applications. It features a 21mm IR receiving electrode with two sensing elements and a 3-4mm window size, optimized for detecting human movement within an 8-meter range. The spectral response spans 5 to 14 micrometers, matching the peak infrared emissions of the human body. Output signal amplitude reaches 3500mV peak-to-peak, with a sensitivity of 3300V/W and a detectivity (D*) of 1.4 x 10^8 cmHz^1/2/W, indicating strong signal-to-noise performance under typical ambient conditions.

The sensor requires a Fresnel lens to function effectively, as is standard for all passive infrared detectors. Transmittance of the window is rated at 75%, which aligns with industry norms for uncoated polycarbonate or silicone lenses. This model is not rated for outdoor use without additional environmental protection. Its low power consumption makes it suitable for battery-operated lighting controls, but it does not include built-in signal processing or relay output - external circuitry is needed for activation. The design is fixed; custom variants are available upon request but require minimum order quantities not disclosed in this listing.

This sensor is commonly purchased by manufacturers of automatic lighting systems, security devices, and smart home controllers in Southeast Asia and Eastern Europe. Buyers typically integrate it into printed circuit boards with conditioning amplifiers and timing circuits. Packaging is bulk tape-and-reel or loose in anti-static bags, with standard MOQs of 1000 units or more. Lead time is typically 15 to 25 days after order confirmation, subject to production scheduling. Incoterms are usually FOB Shenzhen, with payment via T/T in advance.

Senba Sensing Technology Co., Ltd is a manufacturer based in Shenzhen, Guangdong, with a physical address in Huawang Industry Park, Xixiang Street. The company specializes in passive infrared sensors and related detection components. Its trust tier is listed as harbor, indicating basic verification of legal registration and physical address. There is no public record of certifications such as ISO 9001, CE, or RoHS on this listing, and response metrics show no recorded communication history.

The supplier does not disclose production capacity, workforce size, or export volume. It does not list any branded product lines beyond the D203S and similar PIR models. No client testimonials, case studies, or third-party audit reports are referenced. Buyers should treat this as a component-level manufacturer without downstream product branding. Direct technical inquiries should be submitted via email or messaging platforms, as no phone or live chat support is indicated.